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Thanks to fully multi coated Bak-4 glass material and the extra large objective lens diameter the BRESSER Spezial-Astro 20x80 Porro Binoculars provide bright, crisp images from edge to edge. Their high 20x magnification makes these excellent binoculars convenient not only for observing astronomical objects, but are also practical for viewing distant terrestrial targets and nature study. Their optical design and coatings minimise stray light and ghosting (even near brighter objects like the Moon), which would otherwise disrupt and detract from observing enjoyment.
Diopter compensation and foldable rubber eyecups give wearers of glasses the possibility of making the best use of these binocular's wide field of view.
With the tripod thread integrated in the strong central support column, which is adjustable along the centre axis bar, the BRESSER Spezial-Astro 20x80 Porro Binoculars can directly be mounted onto any suitable camera-style tripod and balanced front to back, once in place.
FEATURES
Diopter compensation and foldable rubber eyecups give wearers of glasses the possibility of making the best use of these binocular's wide field of view.
With the tripod thread integrated in the strong central support column, which is adjustable along the centre axis bar, the BRESSER Spezial-Astro 20x80 Porro Binoculars can directly be mounted onto any suitable camera-style tripod and balanced front to back, once in place.
FEATURES
- Binoculars for astronomical and long distance observations
- Extremely high light gathering capacity
- Can directly be mounted onto tripods with standard 1/4" attachments
- Binoculars
- Carry case
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Type | |
| Type | Standard Binoculars |
| OPTICAL SPECIFICATIONS | |
| OPTICAL SPECIFICATIONS | Large binoculars |
| Optical design | Porro |
| Magnification | 20 |
| LE Eyepieces | ✓ |
| Mirror/Lens diam. | 80 mm |
| Material prisms | BaK-4 |
| Type of coating | Fully multi-coated |
| Colour of coating | violet |
| Eyepieces for eyeglass wearers | ✓ |
| Diopter setting | ✓ |
| Field of view at 1000m7 | 56 m |
| Relative brightness7 | 16 |
| Twilight factor7 | 40 |
| Near focus from7 | 40 m |
| GENERAL TECHNICAL DATA | |
| Bag/Pouch | nylon carrying case with carrying strap |
| Colour | black |
| Body material | Aluminium |
| Tripod adapter thread | ✓ |
| Focusing system | Central focus wheel |
| Eyecups | Rubber eyecups, foldable |
| Interpupilar distance min. | 57 mm |
| Interpupilar distance max. | 72 mm |
| Material | Aluminium |
| Body armouring | Rubber/Plastic |
| Dust protection caps | for objective and eyepiece, individually removable |
| Extended warranty | 5 years |
| DIMENSIONS & WEIGHTS | |
| Total length | 330 mm |
| Total width | 235 mm |
| Total height | 108 mm |
| Net weight (without access.) | 2100 g |
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Type | |
| Type | Standard Binoculars |
| OPTICAL SPECIFICATIONS | |
| OPTICAL SPECIFICATIONS | Large binoculars |
| Optical design | Porro |
| Magnification | 20 |
| LE Eyepieces | ✓ |
| Mirror/Lens diam. | 80 mm |
| Material prisms | BaK-4 |
| Type of coating | Fully multi-coated |
| Colour of coating | violet |
| Eyepieces for eyeglass wearers | ✓ |
| Diopter setting | ✓ |
| Field of view at 1000m7 | 56 m |
| Relative brightness7 | 16 |
| Twilight factor7 | 40 |
| Near focus from7 | 40 m |
| GENERAL TECHNICAL DATA | |
| Bag/Pouch | nylon carrying case with carrying strap |
| Colour | black |
| Body material | Aluminium |
| Tripod adapter thread | ✓ |
| Focusing system | Central focus wheel |
| Eyecups | Rubber eyecups, foldable |
| Interpupilar distance min. | 57 mm |
| Interpupilar distance max. | 72 mm |
| Material | Aluminium |
| Body armouring | Rubber/Plastic |
| Dust protection caps | for objective and eyepiece, individually removable |
| Extended warranty | 5 years |
| DIMENSIONS & WEIGHTS | |
| Total length | 330 mm |
| Total width | 235 mm |
| Total height | 108 mm |
| Net weight (without access.) | 2100 g |
